Mold-making machine.



H. Rf ATWATBR. MOLD MAKING MACHINE.

Y :APPLIoATIo'N FILED pjq. 12, 190s.

' Patented Oct. 19, 1909.

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f UNITED fsTArns rATENT onirica.

HARRY R. ATWATER, OF CLEVELAND, OHIO, ASSIGNORTO THE OSBORN MANUEAGLUR- ING- COMIPANY, CLEVELAND, OHIO, A CORPORATION OF OHIO.

' MOLD-'MAKING MACHINE.

Specification of LettersiPatent.

`To all whom it may concern:

VBe it known thatI, HARRX R. ATWATER, a citizen of the United States, and aresident of Cleveland, county of Cuyahoga and State of Ohio, have invented a new and useful Improvement in Mold-Making Machines, of which the following is a specification, the principle of the invention beingherein explained and the best mode in which I have contemplated applying that principle, so as to distinguish it from other inventions.

The present invention relating as indicated to mold-making machines, has more particular regard to mold-maki ng machines of the rock-over type, such as shown for example in U. S. Patent No. 890,919.

The object of suchV invention is to provide a machine of this type that will be more readily adaptable to the handling of dierent kinds of work; so that, in other words, a single machine may accommodate patterns for deep as well as shallow castings, all without adding materially to the complexity of the mechanism or detracting from the stabilitv and rigidityfof structure that are essential to the securing of accurate molds from a pattern.

With the above and related objects in view, said inventions, then, consist of the means hereinafter fully described and particularly pointed out in the claims.

The annexed drawing and the following description set forth in detailcertain vmechanism embodying the invention, ,such disclosed means constituting, however, but one of various `mechanical forms in which the principle of the invention may be used.

In said annexed drawings Figure 1 is a side elevation of a mold-making machine embodying my several improvements; Fig. 2 is a plan view of the same; and F ig. 3 is a side elevational view of a detail of the machine.

The frame A of the machine, which in the case of the specific structure illustrated, is mounted on low wheels or rollers a to permit of its movement about, includes the usual mold filling and parting stands A A2. Of these, the filling stand A upon which the lmold isdesigned to restrpending the lling and stamping of the sand therein, comprises simply a plunger a with a small rest or head a2 on its upper end, such plunger being adjustably secured in a-suitable split collar a3 or the like, forming a part of the frame. The parting stand A2 on the other hand,

` rammed.

Patented Oct. 19, 1909.

comprises a plunger a4 adapted to be vertically reciprocated by means of a rockshaft a5 that bears a cam a, such plunger being provided with a platform-like head c" bearing laterally spaced depressible members as arranged to be depressed by the mold bottom during the placing of the mold in position `preparatorily to freeing the same from the pattern embedded in the top of the material with which, the flask of the mold is These details of the construction of the, partino' stand need not, however, be more thanA incldentally noted in this connection, since they form no part of the present invention, it being to the manner in which the pattern plate-holder B is mounted that particular attention is herein desired.

Intermediate between the two stands A A2 just vdescribed are two laterally spaced standards a9 that are integral or rigid with the frame work A of the machine, and in such standards is mounted a shaft or axle o transversely disposed with respect to the stands in question. Transversely mounted upon such shaft, is a secondary frame B formedwith guide-ways o7, so disposed as to lie vertically when said frame is positioned in contact with a stop o2 provided to limit its movement toward the parting stand. The pattern-plate-holder B is mounted upon guide-ways Z2 so as to be vertically adjustable with respect to said parting stand in such position of the frame, set screws b5 or like means being provided in conjunction with the guide ways to secure the plateholder inV any such vertical position as may be desired. Springs o3 are provided, as usual, to facilitate the swinging of the frame B and its attached pattern plate holder B together with the mold when the latter is secured to such holder, over the shaft b from one position tothe other. Pivotally mounted upon the same shaft b along with frame B aretwo sockets c in the ends of which are provided transverse apertures adapted to receive the inner ends c of a bail C, set screws c2 serving to adjustably secure the same therein. Such bail ends are angularly dis'- posed with respect to the body of the bail, which latter is adapted, when the outer end thereof is drawn toward the pattern plateholder B to detachably secure the mold on such holder, as will be readily understood. By virtue, however, of the adjustment of the Vinner ends of said bail, the latter may obviously be adapted to thus secure molds of various depths to the plate-holder.

The general operation of the machine being obvious, it need only be pointed out in conclusion wherein the modifications in the construction of the machine herein before described contributes to such machines usefulness and general adaptability. It will be understood, of course, that the movement of the platform head a7 of the parting stand from its normal raised position to the depressed position in which the mold is designed to be entirely freed from the pattern, will be limited to vthe throw of the cam a, and cannot be readily varied except by substituting for such simple cam-movement, other more complicated mechanism. In the present construct-ion, I have accordingly provided for the adjustment that would be necessary, were one and the same machine vto be employed with patterns of various depths, by rendering the pattern plate-holder B adjustable with lrespect to the axis about which it is oscillatory. I am thus enabled to secure a sufficient distance between the platform of the parting stand and such holder to accommodate any desired depth of flask without it being necessary to disturb the adjustment of 'said parting stand. The filling stand 'being on the contrary immovable during operation of the machine, may be adjusted at thebeginning of such operation to sustain the pattern plate-holder and appurtena-nt parts substantially level, irrespective of the variation in the position of such holder upon the oscillatory frame B. The adjustment of the bail C, utilized to detachably secure the mold upon such plate-holder, will obviously coperate with the foregoing adjust-ment of the plate-holder to render the machine universal in lits capacity to meet the varying demands of the ordinary foundry, so that it will no longer be necessary to havea separate machine or `machines for each dierent class of foundry work as has been thecase heretofore, with a result that a `goodly portion of the equipment of the foundry has had to lie idle a large portion of the time.

Other modes of applying the principle of my invention may be employed instead of the one explained, change being made as regards the mechanism herein disclosed, provided the means stated by any of the following claims or the equivalent of such stated means be employed.

I'therefore particularly point out and distinctly claim as my invention 1. In a machine of the character described, the combination with a filling and a parting stand the latter being vertically reciprocable to withdraw the Vmold from the pattern; of a member oscillatorily supported on a transverse yaxis between said sta-nds; anda pattern plate'holder'adjustably secured to said member, so as to be variously coperative with said parting stand, when the latter is in its normal raised position, substantially as described.

2. In a machine of the character described, the combination with a filling and a parting stand the latter being vertically reciprocable to withdraw the mold from the pattern; of a member oscillatorily supported on a transverse axis between said stands; and a pat tern plate holder slidably secured to said member, so as to be vertically adjustable with respect to said parting stand in the rocked-over position of said member.

3. In a machine of the character described, the combination of a filling and a parting stand, the latter being` vertically reciprocable to withdraw the mold from the pattern; a member oscillatorily supported on a transverse axis between said stands; means limiting the oscillation of said member toward the parting stand; and a pattern plate holder adjustably secured to said member so as to'be variously coperative with said parting stand, when the latter is in its normal raised position, substantially as described.

4. In a machine of the character described, the combination of a filling and a parting stand, the latter being vertically reciprocable to withdraw the mold from the pattern; a member oscillatorily supported on a transverse axis between said stands; means limiting the oscillation of said member to! ward the parting stand; and a pattern plate holder slidably secured at one side to said member, so as to be vertically adjustable with respect to said parting stand in the rocked-over position of said member.

5. In a machine of the character described, the combination with a filling and a parting stand; of a member oscillatorily supported on a transverse axis between said stands; a stop limiting the movement of said member toward said parting stand, said member being formed with guide-ways disposed to lie vertically when said member is positioned in contact with said stop; and a pattern plate holder mounted upon such guide-ways so as to be vertically adjustable with respect to said parting stand in such position of said member.

6. In a machine of the character described, the combination with a filling and a parting stand; of a pattern plate holder oscillatorily supported on a transverse axis between said stands; and a member adapted to detachably secure the mold to said holder, said member being pivotally mounted with respect to said holder and being adjustable transversely of its pivotal axis.

7. In a machine of the character described, the combination with a filling and a parting stand; of a frame oscillatorily supported oil a transverse axis between said stands; a pattern plate holder adjustably secured to said osmose frame, so as to be variously cooperative with said parting` stand; and a member adapted to detachably secure the mold to vsaid holder, said member being pivotally mounted With respect to said holder and being adjustable transversely of its pivotal axis.

S. In a machine of the character described, the combination With a filling and a parting stand; of a frame oscillatorily supported on a transverse axis between said stands; a pattern plate holder slidably mounted upon said frame, so as to be vertically adjustable With respect tosaid parting stand in one position of said frame; and a memberadapted detachably to secure the mold to said holder, said member being pivotal about the same as said frame and being adjustable transversely of such axis.

9. In a machine of the character described, the combination With a filling and a parting stand; of a frame oscillatorily supported on a transverse axis between said stands; a stop limiting the movement of said frame toward said parting stand, said frame being formed with guide-Ways disposed to lie vertically when said member is positioned in contact with said stop; a pattern plate holder mounted upon such guide-ways so as to bevertically adjustable With respect to HARRY R. ATWATER.

Attested by:

MARY GLADWELL, JNO. F. OBERLIN. 

